DE69225090D1 - Verfahren zur Ermittlung eines verrauschten Nutzsignals - Google Patents
Verfahren zur Ermittlung eines verrauschten NutzsignalsInfo
- Publication number
- DE69225090D1 DE69225090D1 DE69225090T DE69225090T DE69225090D1 DE 69225090 D1 DE69225090 D1 DE 69225090D1 DE 69225090 T DE69225090 T DE 69225090T DE 69225090 T DE69225090 T DE 69225090T DE 69225090 D1 DE69225090 D1 DE 69225090D1
- Authority
- DE
- Germany
- Prior art keywords
- determining
- useful signal
- noisy
- noisy useful
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9107323A FR2677828B1 (fr) | 1991-06-14 | 1991-06-14 | Procede de detection d'un signal utile bruite. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69225090D1 true DE69225090D1 (de) | 1998-05-20 |
DE69225090T2 DE69225090T2 (de) | 1998-08-06 |
Family
ID=9413874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69225090T Expired - Fee Related DE69225090T2 (de) | 1991-06-14 | 1992-06-05 | Verfahren zur Ermittlung eines verrauschten Nutzsignals |
Country Status (6)
Country | Link |
---|---|
US (1) | US5337251A (de) |
EP (1) | EP0518742B1 (de) |
JP (1) | JPH06503185A (de) |
DE (1) | DE69225090T2 (de) |
FR (1) | FR2677828B1 (de) |
WO (1) | WO1992022889A1 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5848388A (en) * | 1993-03-25 | 1998-12-08 | British Telecommunications Plc | Speech recognition with sequence parsing, rejection and pause detection options |
US6230128B1 (en) | 1993-03-31 | 2001-05-08 | British Telecommunications Public Limited Company | Path link passing speech recognition with vocabulary node being capable of simultaneously processing plural path links |
EP0695453B1 (de) * | 1993-03-31 | 1999-10-06 | BRITISH TELECOMMUNICATIONS public limited company | Wortkettenerkennung |
FR2704111B1 (fr) * | 1993-04-16 | 1995-05-24 | Sextant Avionique | Procédé de détection énergétique de signaux noyés dans du bruit. |
US5544250A (en) * | 1994-07-18 | 1996-08-06 | Motorola | Noise suppression system and method therefor |
US5488377A (en) * | 1995-03-28 | 1996-01-30 | Mcdonnell Douglas Corporation | Method and apparatus for controlling the false alarm rate of a receiver |
US6263307B1 (en) | 1995-04-19 | 2001-07-17 | Texas Instruments Incorporated | Adaptive weiner filtering using line spectral frequencies |
GB2303471B (en) * | 1995-07-19 | 2000-03-22 | Olympus Optical Co | Voice activated recording apparatus |
FR2744277B1 (fr) * | 1996-01-26 | 1998-03-06 | Sextant Avionique | Procede de reconnaissance vocale en ambiance bruitee, et dispositif de mise en oeuvre |
KR100493982B1 (ko) | 1996-11-14 | 2005-06-10 | 오토-센스 리미티드 | 개선된 잡음 허용 범위를 갖는 검출 시스템 |
DE69831991T2 (de) * | 1997-03-25 | 2006-07-27 | Koninklijke Philips Electronics N.V. | Verfahren und Vorrichtung zur Sprachdetektion |
FR2765715B1 (fr) | 1997-07-04 | 1999-09-17 | Sextant Avionique | Procede de recherche d'un modele de bruit dans des signaux sonores bruites |
US6178161B1 (en) * | 1997-10-31 | 2001-01-23 | Nortel Networks Corporation | Communications methods and apparatus |
US6327564B1 (en) * | 1999-03-05 | 2001-12-04 | Matsushita Electric Corporation Of America | Speech detection using stochastic confidence measures on the frequency spectrum |
US6611150B1 (en) | 1999-03-31 | 2003-08-26 | Sadelco, Inc. | Leakage detector for use in combination with a signal level meter |
DE19939102C1 (de) * | 1999-08-18 | 2000-10-26 | Siemens Ag | Verfahren und Anordnung zum Erkennen von Sprache |
US6054927A (en) * | 1999-09-13 | 2000-04-25 | Eaton Corporation | Apparatus and method for sensing an object within a monitored zone |
FR2808917B1 (fr) * | 2000-05-09 | 2003-12-12 | Thomson Csf | Procede et dispositif de reconnaissance vocale dans des environnements a niveau de bruit fluctuant |
US7225129B2 (en) * | 2000-09-21 | 2007-05-29 | The Regents Of The University Of California | Visual display methods for in computer-animated speech production models |
US7136813B2 (en) * | 2001-09-25 | 2006-11-14 | Intel Corporation | Probabalistic networks for detecting signal content |
US6681194B2 (en) | 2001-12-21 | 2004-01-20 | General Electric Company | Method of setting a trigger point for an alarm |
US7197456B2 (en) * | 2002-04-30 | 2007-03-27 | Nokia Corporation | On-line parametric histogram normalization for noise robust speech recognition |
US7190741B1 (en) | 2002-10-21 | 2007-03-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Real-time signal-to-noise ratio (SNR) estimation for BPSK and QPSK modulation using the active communications channel |
US8032370B2 (en) * | 2006-05-09 | 2011-10-04 | Nokia Corporation | Method, apparatus, system and software product for adaptation of voice activity detection parameters based on the quality of the coding modes |
US7876247B1 (en) * | 2007-11-29 | 2011-01-25 | Shawn David Hunt | Signal dependent dither |
US9241672B2 (en) * | 2012-02-09 | 2016-01-26 | Sharp Laboratories Of America, Inc. | Determining usability of an acoustic signal for physiological monitoring using frequency analysis |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4052568A (en) * | 1976-04-23 | 1977-10-04 | Communications Satellite Corporation | Digital voice switch |
FR2466825A1 (fr) * | 1979-09-28 | 1981-04-10 | Thomson Csf | Dispositif de detection de signaux vocaux et systeme d'alternat comportant un tel dispositif |
US4410763A (en) * | 1981-06-09 | 1983-10-18 | Northern Telecom Limited | Speech detector |
JPS59139099A (ja) * | 1983-01-31 | 1984-08-09 | 株式会社東芝 | 音声区間検出装置 |
FR2583938A1 (fr) * | 1985-06-21 | 1986-12-26 | Labo Electronique Physique | Filtre numerique de quadrature et demodulateur de signal numerique module en frequence comprenant un tel filtre |
US4630304A (en) * | 1985-07-01 | 1986-12-16 | Motorola, Inc. | Automatic background noise estimator for a noise suppression system |
US4914418A (en) * | 1989-01-03 | 1990-04-03 | Emerson Electric Co. | Outbound detector system and method |
US5029187A (en) * | 1989-05-22 | 1991-07-02 | Motorola, Inc. | Digital correlation receiver |
US5093842A (en) * | 1990-02-22 | 1992-03-03 | Harris Corporation | Mechanism for estimating Es/No from pseudo error measurements |
US5097486A (en) * | 1990-07-31 | 1992-03-17 | Ampex Corporation | Pipelined decision feedback decoder |
US5142554A (en) * | 1990-10-31 | 1992-08-25 | Rose Communications, Inc. | Data separator with noise-tolerant adaptive threshold |
-
1991
- 1991-06-14 FR FR9107323A patent/FR2677828B1/fr not_active Expired - Fee Related
-
1992
- 1992-06-05 EP EP92401553A patent/EP0518742B1/de not_active Expired - Lifetime
- 1992-06-05 US US07/972,445 patent/US5337251A/en not_active Expired - Lifetime
- 1992-06-05 DE DE69225090T patent/DE69225090T2/de not_active Expired - Fee Related
- 1992-06-05 JP JP4511069A patent/JPH06503185A/ja active Pending
- 1992-06-05 WO PCT/FR1992/000504 patent/WO1992022889A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
WO1992022889A1 (fr) | 1992-12-23 |
EP0518742A1 (de) | 1992-12-16 |
DE69225090T2 (de) | 1998-08-06 |
FR2677828B1 (fr) | 1993-08-20 |
JPH06503185A (ja) | 1994-04-07 |
US5337251A (en) | 1994-08-09 |
EP0518742B1 (de) | 1998-04-15 |
FR2677828A1 (fr) | 1992-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |